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Subtract 15/20 from 56/18

1st number: 3 2/18, 2nd number: 15/20

56/18 - 15/20 is 85/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    56/18 = 56 × 10/18 × 10 = 560/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    15/20 = 15 × 9/20 × 9 = 135/180
  4. Subtract the two like fractions:
    560/180 - 135/180 = 560 - 135/180 = 425/180
  5. After reducing the fraction, the answer is 85/36
  6. In mixed form: 213/36

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